61
98% of sites on Cloudflare now use IPv6
It's 2016 and almost every site using Cloudflare (more than 4 million of them) is using IPv6. Cloudflare sees significant IPv6 traffic globally where networks have enabled IPv6 to the consumer.
Cloudflare Blog
Technical deep dives, product updates, and insights from the teams that are helping to build a better Internet.
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Visit blog.cloudflare.com → RSS feedOn Hacker News Jun 2011 – Nov 2026
Networking & Internet 106Security & Privacy 101Infrastructure & DevOps 77Web & Frontend 75Systems & Performance 64Software Engineering 53
62
Diving into Technical SEO Using Cloudflare Workers
With this post we illustrate the potential applications of Cloudflare Workers in relation to search engine optimization, which is more commonly referred to as ‘SEO’ using our research and testing over the past year making Sloth.
63
Eliminating cold starts with Cloudflare Workers
A “cold start” is the time it takes to load and execute a new copy of a serverless function for the first time. It’s a problem that’s both complicated to solve and costly to fix.
64
Ending CAPTCHAs: Introducing Cryptographic Attestation of Personhood
We want to remove CAPTCHAs completely. The idea is rather simple: a real human should be able to touch or look at their device to prove they are human, without revealing their identity. Let's explore!
65
Experimenting with Mozjpeg 2.0
One of the services that CloudFlare provides to paying customers is called Polish. Polish automatically recompresses images cached by CloudFlare to ensure that they are as small as possible and can be delivered to web browsers as quickly as possible.
66
CDNJS: The Fastest Javascript Repo on the Web
More than a year ago, Ryan Kirkman and Thomas Davis approached us about a project they were working on. Dubbed CDNJS, the project had a noble goal: make the world's Javascript resources load as fast as possible.
67
A new Cloudflare Web Application Firewall
Today we are announcing a new Cloudflare Web Application Firewall for all Cloudflare paid zone customers.
68
Cloudflare's Handling of an RCE Vulnerability in Cdnjs
Recently, a RCE vulnerability in the way cdnjs’ backend is automatically keeping web resources up to date has been disclosed. Read about how Cloudflare handled the security incident and what will prevent similar exploits in the future.
69
Cloudflare Distributed Web Gateways: Unlocking the Web3 Metaverse
Cloudflare announces the Private Beta of their Web3 gateways for Ethereum and IPFS. Unlocking the Metaverse, Web3, and Decentralized Finance for every developer.
70
HPACK: the silent killer (feature) of HTTP/2
If you have experienced HTTP/2 for yourself, you are probably aware of the visible performance gains possible with HTTP/2 due to features like stream multiplexing, explicit stream dependencies, and Server Push.
71
Tools for debugging, testing and using HTTP/2
With CloudFlare's release of HTTP/2 for all our customers the web suddenly has a lot of HTTP/2 connections. To get the most out of HTTP/2 you'll want to be using an up to date web browser (all the major browsers support HTTP/2).
72
CNAME Flattening: RFC-Compliant CNAMEs at a Domain's Root
This post is about a new feature we've been quietly rolling out over the last few months. Last week we began enabling it for everyone by default.
73
Cloudflare supports Privacy Pass
Cloudflare supports Privacy Pass, a recently-announced privacy-preserving protocol developed in collaboration with researchers from Royal Holloway and the University of Waterloo.
74
Private Access Tokens: eliminating CAPTCHAs on iPhones and Macs with open standards
Today we’re announcing Private Access Tokens, a completely invisible, private way to validate that real users are visiting your site
75
Validating Leaked Passwords with k-Anonymity
Today, v2 of Pwned Passwords was released as part of the Have I Been Pwned service offered by Troy Hunt. Containing over half a billion real world leaked passwords, this database provides a vital tool for correcting the course of how the industry combats modern threats against password security.